diff options
| author | Michael Kelley <mikelley@microsoft.com> | 2021-03-02 13:38:14 -0800 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2021-03-08 17:32:59 +0000 |
| commit | 5e4e6ddf8d74068fd6bb7922dabcfa2c0f506c39 (patch) | |
| tree | fb95729b2ed48143414b0465ea75c7eb20f36c7b /include | |
| parent | ca48739e59df31d16c27dbcd9ea2ea61d7caa9fb (diff) | |
x86/hyper-v: Move hv_message_type to architecture neutral module
The definition of enum hv_message_type includes arch neutral and
x86/x64-specific values. Ideally there would be a way to put the
arch neutral values in an arch neutral module, and the arch
specific values in an arch specific module. But C doesn't provide
a way to extend enum types. As a compromise, move the entire
definition into an arch neutral module, to avoid duplicating the
arch neutral values for x86/x64 and for ARM64.
No functional change.
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/r/1614721102-2241-3-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/hyperv-tlfs.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h index 83448e837ded..9cf10837d005 100644 --- a/include/asm-generic/hyperv-tlfs.h +++ b/include/asm-generic/hyperv-tlfs.h @@ -220,6 +220,41 @@ enum HV_GENERIC_SET_FORMAT { #define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) #define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) +/* + * Define hypervisor message types. Some of the message types + * are x86/x64 specific, but there's no good way to separate + * them out into the arch-specific version of hyperv-tlfs.h + * because C doesn't provide a way to extend enum types. + * Keeping them all in the arch neutral hyperv-tlfs.h seems + * the least messy compromise. + */ +enum hv_message_type { + HVMSG_NONE = 0x00000000, + + /* Memory access messages. */ + HVMSG_UNMAPPED_GPA = 0x80000000, + HVMSG_GPA_INTERCEPT = 0x80000001, + + /* Timer notification messages. */ + HVMSG_TIMER_EXPIRED = 0x80000010, + + /* Error messages. */ + HVMSG_INVALID_VP_REGISTER_VALUE = 0x80000020, + HVMSG_UNRECOVERABLE_EXCEPTION = 0x80000021, + HVMSG_UNSUPPORTED_FEATURE = 0x80000022, + + /* Trace buffer complete messages. */ + HVMSG_EVENTLOG_BUFFERCOMPLETE = 0x80000040, + + /* Platform-specific processor intercept messages. */ + HVMSG_X64_IOPORT_INTERCEPT = 0x80010000, + HVMSG_X64_MSR_INTERCEPT = 0x80010001, + HVMSG_X64_CPUID_INTERCEPT = 0x80010002, + HVMSG_X64_EXCEPTION_INTERCEPT = 0x80010003, + HVMSG_X64_APIC_EOI = 0x80010004, + HVMSG_X64_LEGACY_FP_ERROR = 0x80010005 +}; + /* Define synthetic interrupt controller message flags. */ union hv_message_flags { __u8 asu8; |